Six-wheel equalizing truck



Feb. 20, 1923.

M67273??? 17/272 dial/720721 (arl Mfitenberg I 6 v1- w- 1. A. LAMONT ET AL. SIX-WHEEL EQUALIZING TRUCK. FILED APR 30. 1921 wam @QMMM Patented Feb. 20, 1923.

JOHN A.-LAMONT AND CARL M. STENBERG, OF CI-iICAGO, ILLINOIS, ASSIGNORS TO' AMERICAN STEEL FOUNDRIES, OF CHICAGO, ILLINOIS. A CORPORATION OF NEW JERSEY.

' SIX-WHEEL EQUALIZING TRUCK.

Application filed Avril 30, 1921. Serial No. 465,941. I

To all whom it may concern:

' Be it known that we, JOHN A. LAMONT and CARL M. STENBERG, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Six-Wheel Equalizin Trucks of which the following is a speci cation.

This invention relates to railway car trucks, and more particularly to load equalizing mechanism for six-wheel trucks.

One object of the invention 1s to s mplify and improve load equalizing mechanism for railway car trucks and to reduce the number of parts and improve the cooperative action therebetween.

Another object is to provide load equalizing mechanism for six-wheel trucks adapted to meet the various requirements for successful commercial operation.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheet of drawings, in which- Figure 1 is a fragmentary vertical long1 tudinal sectional view of a six-wheel truck embodying my invention, parts of the equalizing mechanism being shown 1n side elevation- Figure 2 is a fragmentary horizontal longitudinal sectional view of the same;

Figure 3 is a half sectional View taken in the plane of line 33 of Figure 1, the right-hand half of the side frame and its associated parts only being shown; and

Figure 4 is a fragmentary sectional view taken in the planes of the irregular line 4-4 of Flgure 1.

The various novel features of the invention will be apparent from, the following description and drawings and will be particularly pointed out in the appended claims.

The invention is disclosed in connection with a six-wheel truck including an integrally formed side frame 10 having two end pockets (not shown) for end journal boxes, and an intermediate pocket 11 for a middle journal box 12. In this particular instance the journal box is provided with upwardly and outwardly extending spaced side walls 13 joined at their outer ends by ends walls 14 which slidably engage ver- The main body portion-of the journal box 12 includes a top 17 having a concave portion 18 for the reception of a rocker portion 19 of an equalizing beam 20 upon which are mounted a plurality of springs 21 for yieldably transmitting loads through said beam 20 to the journal box 12. Mounted upon the springs is a spring cap in the form of a yoke or inverted U-shaped member 22 having depending arms. 23 which extend downwardly through spaces between the side walls 13 and the end walls 14 and the main portion of the journal box 12. The lower ends of the arms 23 are bifurcated and receive therebetween the inner ends of equalizing levers 24, said inner ends of said levers having recessed portions resting upon and receiving pins 25 extending through aligned openings in the bifurcated or lower ends of the arms 23. The outer end of each of these equalizing levers terminates in an upwardly extending portion which passes upwardly between side walls 26 of the sideto starting and stopping actions of the car for the purpose of preventing the equalizing mechanism as such from taking shocks resulting from such starting and stopping actions. These shocks are taken by and between the transverse bolster members 32 which are rockably mounted-upon intermediate portions of equalizing levers 24, and by side walls 31 of the pockets which receive the bolster members 32. When the equalizing levers 24 move longitudinally prior to the time that the, bolster members 32 engage the pocket side walls 31, not only willthe members 28 rock but also the yoke 22 will be given a rocking motion through its arm 23, which rocking motion in turn will be transmitted through the spr ngs 21 to the equalizing beam 20 which Wlll. rock on the top 17 of the intermediate journal box 12. v V

Also the equalizing beam will be caused to rock on its support in accordance with load ualizing conditions, it being understood t at the loads are transmitted through the bolster members 32, equalizing levers 24, spring c or yoke member 22, springs 21, and e ua lzing beam to the journal box 12. tendency for the arms 23 to spread and to 1 prevent this the pins 25 .are formed integrally with a connecting bar 33 wh ch passes under the lower curved portion of the jour-.

nalbox 12. v I

It is our intention to cover all modifica- 20 tions of the invention falling within the spiritand scope of the following claims.

We claim; 1. In a six-wheel car truck, the combina-- tion of an intermediate journal box, an

e25, equalizing ,,beani rockably mounted on said box, resilient means mounted on said beam,

and means including a member capping said.

resilient means for transmitting a load through said resilient means and beams. to said box.

2. In a railway car truck, the combination of a support, an equalizing beam rockably mounted on' said support, resilient means mounted on said beam, and means including 5 a member capping said resilient means for transmitting a load through said resilient means and beam to said support.

3. In a six-wheel car truck, the combination of an intermediate journal box, an

equalizing beam movably mounted'on said box, resilient means mounted on sald beam,

3, capmounted over said springs, and equalizing levers operatively connected to said cap for transmitting loads therethrough and through said resilient means and equalizing beam to said journal box.

4. In a six-wheel car truck, the combina tion of an intermediate journal box, an equalizing beam movably mounted on said box, resillent means mounted on said beam, a cap mounted over said springs, equallzing levers operatively connected to sald cap for transmitting loads therethrough and through said resilient means and equa izing beam to said. journal box, and means for rockably nder certain conditions'there is a- -1 lmaa aamm supporting the outer ends of said equalizin levers to permitlongitudinal movement 0% same to prevent said equalizing parts from taking shocks incident to starting and stopping of the car.

5. In a six-wheel car truck, the combination of an intermediate journal box, equaliz-v ing mechanism operatively connected thereto and including a load carrying member rockably mounted with respect to said journal box and also including an equalizing lever the relatively fixed end of which isrockably supported whereby the equalizing mechanism is permitted to move longitudinally of the truck incident to starting and stopping of the car to prevent "said equalizing mechanism from taking shocks incident to said starting and stopping actions.

6. In a six-Wheel truck, the combination of an intermediate journal box, equalizing 75 levers operatively connected thereto for transmitting loads to said'box, and rockers at the outer ends of said equalizing levers for permitting the latter to move longitudinally of the truck upon starting and stopping of the truck to prevent such equalizing mechanism from taking shocks incident to said starting and stopping actions.

7. In a six-wheel truck, the combination of a journal box having outwardly extending spaced walls, a spring cap for transmitting loads toward said journal box and having arms extending between said spaced walls of said journal box, and equalizing levers operatively connected to said arms.

8. In a six-wheel truck, the combination of an intermediate journal box, equalizing levers, a spring cap having depending arms to which loads are transmitted from said equalizing levers toward said journal box, and. pins forming the connection between said equalizing levers and arms and being connected by an intermediate connecting portion to prevent said arms from assuming relatively abnormal positions.

9. In a six-wheel car truck, the combination of an intermediate journal box, an equalizing member movably mounted on said box, springs mounted on said member, a cap mounted over said springs, and equalizing levers operatively connected to said cap. Signed at Chicago, Illinois, this 18th day of April, 1921. 4 JOHN A. LAMONT. CARL M. STENBERG. 

